Loading...
HomeMy WebLinkAboutTraffic Impact William Popp Associates Transportation Engineers/Planners (425) 8 .100 FAX(425)4015 r e-mail: info@wmpoppassoc com v i ON w TRAFFIC IMPACT ANALYSIS for Kennydale Business Park Development Prepared for: Seelig Family Properties Prepared by: William Popp Associates 14-400 Building, Suite 206 14400 Bel-Red Rd Bellevue, WA 98007 June 11, 2004 Nil 14-400 Building. Suite 206. 14400 Bel-Red Road e Bellevue,WA 98007 Trqj fie Impact Anal sis Kenn dale Business Park TABLE OF CONTENTS INTRODUCTION........................................................................................................................................1 A. EXISTING CONDITIONS.................................................................................................................... 1 1. SITE SERVICES INVENTORY................................................................................................................. 1 2. ACCIDENT DATA, LAST 3 (AVAILABLE)CALENDAR YEARS.................................................................2 3. TRAFFIC VOLUMES..............................................................................................................................3 4. LEVEL-OF-SERVICE.............................................................................................................................3 5. PLANNED AND PROGRAMMED IMPROVEMENTS...................................................................................5 B. FUTURE CONDITIONS........................................................................................................................6 1. BACKGROUND TRAFFIC VOLUMES......................................................................................................6 2. PROJECT TRIP GENERATION................................................................................................................6 3. TRIP DISTRIBUTION AND TRAFFIC ASSIGNMENT.................................................................................7 4. BACKGROUND TRAFFIC PLUS PROJECT TRAFFIC VOLUMES................................................................7 5. LEVEL-OF-SERVICE.............................................................................................................................8 C. CONCLUSIONS...................................................................................................................................10 1. PROJECT VEHICULAR IMPACT........................................................................................................... 10 2. ACCIDENTS........................................................................................................................................ 10 3. LEVEL OF SERVICE............................................................................................................................ 10 D. MITIGATION AND RECOMMENDATIONS..................................................................................11 Page i Traffic Impact Analysis(6/11 m Kenn-1-7-Business Park INTRODUCTION The following report was prepared in order to address the traffic related impacts of the proposed office building project located in the city of Renton. This study evaluates the project's PM peak hour impact at selected intersections. The intersections include: ✓ Lake Washington Boulevard NE/NE 48th St(aka SE 76th St) ✓ Lake Washington Boulevard NE/NE 44th St The study addresses the typical City of Renton traffic impact analysis guidelines of project impacts at year of full occupancy. Project Identification The proposed project known as the Kennydale Business Park is located on the south side of NE 48th St just east of Lake Washington Boulevard NE, as shown in Figure 1. The proposed project design includes 2 commercial buildings totaling approximately 104,871 gsf of office space. Access to the site is proposed with two driveways to NE 48th St. The site plan is presented in Figure 2. A. EXISTING CONDITIONS 1. Site Services Inventory Roadways Key roadways serving the site are discussed below. NE 48th St (aka SE 76th St) is a two-way east/west residential street that connects from Lake Washington Boulevard NE in the city of Renton to 116th Ave SE in the city of Newcastle. The roadway grade is has a steep downhill grade east to west of approximately 8%to 10%. In the city of Renton limits, the roadway is three lanes wide (two through lanes and one center left turn lane)with curb, gutter, sidewalks on both sides. On-street parking is prohibited. Traffic control includes a stop and yield sign at the Lake Washington Boulevard/NE 48th St intersection. In the city of Newcastle, the roadway is two lanes wide with narrow paved and gravel shoulders on both sides. There is an all-way stop at the 116th Ave SE/SE 76th St intersection. The posted speed limit is 25 mph. William Popp Associates page 1 Traffic Im act Analysis 6111/04 Kenn dale n Y stness lark Lake Washington Boulevard NE is a two-way north/south minor arterial that runs parallel with I-405 between the NE 44th St interchange and the 112th PI SE interchange to the north. In the city of Renton limits, the road varies between 2 and 3lanes. Between NE 44th St and the commercial/retail driveway to the north (which is approximately at the 46th block) the road is 2 lanes wide with an 6-8 foot paved shoulder on the west side and extruded curb and walkway on the east side. North of the 46th block, the road is 3 lanes wide (two through lanes and a center left turn lane), with curb, gutter, and sidewalk on the east side and a 6-8 foot paved shoulder on the west side. On-street parking is prohibited. Traffic control consists of a stop sign at NE 44th St. The southbound approach to NE 48th St has a left turn lane. The posted speed limit is 35 mph. NE 44th St is an east/west collector arterial that is the continuation of Lake Washington Boulevard and Lincoln Avenue N and crosses over I-405. NE 44th St has two travel lanes in each direction with left turn pockets at both ramp intersections. Each intersection is controlled with stop signs on the cross streets. The bridge has small sidewalks on both sides and limited paved shoulders on each side of the structure. The roadway widens to five lanes just east of 1-405 as it transitions to Lincoln Avenue NE. Pedestrian Facilities Pedestrian facilities in the vicinity of the site include limited sidewalks on selected roadways. There is a crosswalk on the east leg at the Lake Washington Boulevard NE/ NE 48th St intersection. Transit Service Transit service in the region is provided by the King County Department of Transportation (Metro Transit). There is, however,no transit service in the vicinity of the site including Lake Washington Boulevard,NE 48th St, or NE 44th St. The nearest transit service is Route 925 on 116th Ave SE, and the nearest Park& Ride Lot is the Newport Hill P&R at the I405/112th PI SE interchange. 2. Accident Data, last 3 (available) calendar years. A summary of the three-year accident data at the analysis intersections was obtained from the City of Renton. Data for all City intersections was for the period of January 1, 2000 through December 31, 2003. Accident data at the Lake Washington Boulevard/NE 48th St intersection was only available for the later two years since the intersection is in a newly annexed area. King County indicated there were no accident records at this intersection in 2001. A summary of available accident data is presented in Table 1. William Popp Associates page 2 K I N- „�' HILLSIDE - x 1� `� SE`-r 68TH u 6y1 B '. s7oo a N =�P r `vEIJ ;- � aST tt 78p0 SE ys. "69Tff 51 n MIX I ;:.4:y„ .:.'t:..�:8 m. si THFx �lT m i �� se rola sr ❑ sr _SSE rA TI 72x0= - 5i •7 Ate ``o � a n G x N'< F: '.*'�0- s `" �t `•' I r PKf'.SF .. L A 77ro tT tsps e sr n gs6r ,ter.'``'•'' 7 RD € " o`•` s Lt N`E 29 1 S a w ^hg ST `` ^✓ �, 4 +w �6E ,y, ``t� T/ 1 �S76M n'X^• �Ci 7(1 76tH H 7 A SE / . Y r '^ SE,F75TH PL L _ A N Ir s h 5T 447- �n a 'a>x' inw KTerx BEACx N 13X0' 1GHT qwp .IABP_. PL J 1200 11600 fe tl �� f rr r B sI T 4y T SE H Al/ �.e N40TH ST x Io. sT EANrryw y[ z 1700 z in 1 - e A651xn SE esix t� EBS Ix / =38TH ST .v"' „< s A 3 Bbrx sr PL,7,~ � �+�rx n � 1 nm = E f KCxxrWtC Y 36TH < HE 36TH `st. Z SE 38TH E cT ST a BEAC14 PARK 3 ST /� a= 1600 - /f ay f. 35TH ST •i '��a t y, &S 89TH ST / N1�x F TN i SA 'pl�. / 31TH i ST S 90TH ST k 33RD PL �` o SE 91 ST ST 1 SE 91ST' ST / HST .1 11000 92x0 ST ^I a 12200 �7. E�i1114 I 700 N 31ST 5T s e. >- NE 11ST ST 1 rn � CHEEK LµC�r N 31 ST 700 N 29TH ST R .lam '^ rn ..,r_` ARK tY1• HAY'`k6 hv., ,,.t..T 95TH w "• ssa:Tyg•1' . 12700 >� N 28TH PL nn _- -- r NETm28TH ST V - '' E_ •��".'- if xE 77F 27TH .�E •" "�ir'�, scrx -.• .��:. S1 LAKE 27TH 2100 z W ST Wr-=i?ry, :,: s� �c sr SIERRA X Ci f Nr _ cl 'L -9A"1"sr HEIGHTS s _ 2 W tiy< �,f9' } \ is sx ri�xxF1' .-KENNY LE a Ix it IOOrx STS- PARK LION5 h ST r N 1 '< 24 111 STs ... .'.. aK - t SHINGTON £ 1700 „ : <NEE N Si` b ti �� 3 E 7 22ND t r l N m I SE 10)AO Z < xf 21ST 5 6$a N 22X0 ST w m �� SE 10 �- 5 a 1 ipo, 2900 1 O < a'r L Sr W A IIOSrxI n Z HE 20TH :T 2700 xL 70 s Y ,+ w J' `�• -llkl \CREEKIro- t` r 1700 ssur n < 19 A AURiH y' Ot,S_DP $PACE L_ : 106TH ST F 03 le ST MffAllAN05 \3� BOAr UU cy 1 W^ W : 2400- PLO, <=S - E t• � -7eoo _ TH sr^ W s xc 7rx PL tD ;,;< w si 1„lax Sr \ tx[ uIx IT DIME C01710M Y 8 m W Y f xf NE ltix sIfBREACH - r NIO 12TH`''a 5T E IZTN Sr 6S 9G ,�; \ eEAcx PARK� F x troy z w� a.tTr 700 KIIT N ,i„ PARK RENTON i 'l l XL III 5 SrST =II AIRPORT �� .i z tori w $o 9: 5 PL C( BD,i UUMCN �� i r OP(�'�- xE IOTX ` n i i x[cra'ro tt sjc s` u' p < =10TH LN ..B $T ME 10 s'" 1 BOEING \\ / E/ nnr �� TH St 9 HE I H _17TH PL x ,J,RENTONPLANT 0a// 2 A ` NE 9TE PL ST r KINA A ¢ J2�� Gt id � !1< pARF 9 : xE els= ST _ur oCEDAR < = vST m RE < NfGxLA 5 z _ 'Y yap NE 8TH w<ST `NC 7TH S y v�• RIVER Y , 2IOD 7H PARK '- „E BtH S ,S"p0 NE 7TH ST< STY N sun__ .-. TRAIL ANY 7TH ST. H E -T.[PtyT) A WILLIAM POPP ASSOCIATES 14400 Bel-Red Rd #206 VICINITY MAP Kennydale Business Park Bellevue,WA 98007 425.401.1030 47 wepa@semet.com Figure 1 f a N N •N N as ;—_ LMT lE9_ =L = i- --------------------------------- ------•--•-------- .meaxea T-µ - — - - ----- 1 ; ; - q'PIAM 7AIp GCTG&= Vii' II 3 ' I 1 1 i i i `•t C � 1 1�; trslsvcawnucew � 't RR; 1 LLL._... .- ' 11 PI PARKIIN6 LEVEL - 91 STALLS J) n tR F- I� LU r BUILDING A ,WING I BUILDMG A ,WING 7 Z I IST FLOOR - 10,468 SP IST FLOOR • 21.633 SF -► {i {� �t � rs•+ sr� n.•.r 1 � 1 BUILDIW-x B.WING IT,°•.• It 1 � - BUILDING B.WIt,Yn ? 1 � ROOF SNOl1N i II p ' w*o, ' i it cI,,.MCA.TOM BLDG A - IST FLR PLAN I W a¢� u h co u 3 -t 8 m a O z _ 4 a a 3 Traffic Impact Analysis(6/11/04) Kennvdale Business Park Table 1 Three Year Accident History' Number of Accidents by Year Accident Intersection Control 2001 2002 2003 Total Rate Lake Washington Blvd NE/ side-street stop 0 1 0 1 0.15 NE 48th St(aka SE 76th St) Lake Washington Blvd NE/ side-street stop 5 7 10 22 1.81 NE 44th St/1405 NB Ramps a Data period is between 8/31/98 through 12/31/99. b Accidents per million entering vehicles. As shown in Table 1, the number of accidents occurring at the Lake Washington Boulevard NE/NE 48`h St intersection indicate adequate safe operation at this intersection. However, the number of accidents and accident rate at the Lake Washington Boulevard NE/NE 44`' St intersection indicates that this intersection is experiencing accident conditions above the typical standard threshold and thus a review of accident types is presented. The typical standard threshold is 1.0 accidents per million entering vehicles (acc/mev). A review of the accident information at the Lake Washington Boulevard/NE 44th St intersection indicates the majority of the accident types were right-angle accidents. The total for the three year period was 15 right-angle type accidents (68% of all the accidents) including vehicles attempting to cross NE 44"' Street from either the off-ramp or Lake Washington Boulevard. Other accident types included: 2 sideswipes, 2 rear-end, 2 approach turn, and one was a fixed object. Eleven of the accidents were incidents from vehicles on the south leg approach conflicting with the major street, 4 incidents involved vehicles on the north leg approach conflicting with the major street, and 3 incidents involved vehicles solely on the major street. 3. Traffic Volumes Existing PM peak hour turning movement counts were collected at the two subject intersections during May of this year. A summary of the existing PM peak hour volumes at the analysis intersections is presented in Figure 3. 4. Level-of-Service Level-of-service (LOS) is a term defined by transportation and traffic engineers as a qualitative and quantitative measure of operational conditions within a traffic stream and the perception of these conditions by motorists and/or passengers. There are several quantitative indices utilized depending on the type of intersection control present. There are six levels-of-service that are given letter designations from "A" to "F", with "A" being William Popp Associates Page 3 O N— — W co SE 68th St ,a m 0 rr M 2 (� 12� J W l co 0 11 Q C� 00 t0 rCN-:4' v ` __ 48th St SE 76th St / l_ 49 115 l j — 55 - /C\ SITE 81 ___) 160 --- 43 r, SE 80th St Lu Z Z c u° c y J C m oc 0 r ay v`a SE 88th St xx-2004 PM PK HOUR WILLIAM P0PP 4ASSOCIATES 400 e1 Rd N206 EXISTING TRAFFIC VOLUMES Kennydale Business Park Bellevue,WA 98007 425.401.1030 wepa@se=etcom Figure 3 — Trak Impact Analysis(6/11/04) Kenn dale Business Park the best, or minimum delay conditions, and "F" being the worst, with maximum delay or jammed conditions. LOS "C" or "D" is generally considered acceptable for planning and design purposes, while LOS "E" represents operating conditions at or near capacity with freedom to maneuver being extremely difficult. Level-of-service for the existing condition was calculated using the techniques presented in the 2000 Highway Capacity Manual (HCM). Level-of-service for signalized and non- signalized intersections is quantified in terms of vehicular delay. Delay, measured in terms of time (seconds), also represents driver discomfort, frustration, excess fuel consumption and lost travel time. The supporting Highway Capacity Software utilized for all calculations is version 4.1c. UN Table 2 Intersection Level-of-Service Criteria Level of Stopped Delay Per Vehicle Service Definition signalized non-signalized A Little or no delay Less than 10.0 sec Less than 10.0 sec B Short traffic delays 10.1 to 20 sec 10.1 to 15 sec C Average traffic delays 20.1 to 35 sec 15.1 to 25 sec D Long traffic delays 35.1 to 55 sec 25.1 to 35 sec E Very long traffic delays 55.1 to 80 sec 35.1 to 50 sec F Extreme delay Greater than 80 sec Greater than 50 sec 1 Delay;seconds per vehicle The existing level of service at the analysis intersections is presented in Table 3. Note that for signalized intersections, the delay presented represents the overall operation of the intersection, whereas the delay presented for unsignalized intersections represents the delay for the critical approach or movement. The results are presented in this manner since the overall intersection delay at a non-signalized intersection is generally quite good because the major through street maneuvers are not impeded and for the most part carry the majority of the traffic. William Popp Associates Page 4 Traffic Impact Analysis(6/11/04) Kenn dale Business Park Table 3 Existing Intersection Level-of-Service(PM Peak Hour) Traffic Intersection Control LOS Delay' Comments Lake Washington Blvd NE/NE 48th St two-way stop A 7.8 southbound left turn-yield (aka SE 76th St) B 12.5 westbound left turn-stop A 9.4 westbound right tum-yield Lake Washington Blvd NEME 44th St/ two-way stop C 18.3 southbound approach-stop 1-405 NB Ramps C 21.4 northbound approach-stop A 7.7 eastbound left turn-yield A 7.7 westbound left turn-yield a delay values represented in seconds per vehicle i As shown in Table 3, the critical movement at the Lake Washington Boulevard NE/NE 48th Street intersection, which is the westbound left turn, is estimated to operate at LOS B. The critical movement at the Lake Washington Boulevard NE/NE 44th Street intersection, the northbound approach, is estimated to operate at LOS C. The level of service analysis at this intersection assumes that up to two vehicles can store in the flared northbound approach(I-405 off-ramp), and that there is no flare for the southbound approach(Lake Washington Boulevard). 5. Planned and Programmed Improvements According to the city of Renton's 2004-2009 Capital al Improvement Program- Transportation Projects, there are no immediate roadway project improvement projects within the study area vicinity. There is,however, a design study transportation project that will evaluate traffic conditions on Lake Washington Boulevard between Coulon and NE 44"' St. In addition, there are the potential Port Quendall project and the I-405 widening project both of which will have a direct and significant impact on the immediate surrounding infrastructure. Despite this, due to the uncertainties of both projects, they are not considered in this study since what is presented here are relatively short term transportation impacts and findings. 14 William Popp Associates page 5 Traffic Impact Analysis(6/11/04) Kenn dale Business Park B. FUTURE CONDITIONS 1. Background Traffic Volumes Background traffic volumes are estimated by factoring the existing traffic volumes by historical traffic growth rate(s)to the project's horizon year and adding in known pipeline development proposals. However, there are no pipeline projects identified by the city to be included in this traffic analysis. Thus, the future volumes are solely based on background growth rates. The annual growth percentage was estimated to be 2%per year. This rate was based on the following: • A comparison growth check was conducted utilizing land use data obtained from the Puget Sound Regional Council (PSRC) for TAZ 297(located within FAZ 4226). The data from PSRC was summarized for the years 2000, 2010 and 2020. In order to obtain an estimate of vehicle trip-end growth in this TAZ, the land use data (population and employment)was converted to PM peak hour trip ends based on ITE rates. From this it was determined that traffic volumes within TAZ 297 are estimated to increase approximately 1.5%per year between 2000 and 2010, and 1.6%per year between 2000 and 2020. The TAZ map and subsequent land use data and trip end growth are attached. Therefore, based on the information presented above, utilizing2% e a per year growth rate for estimated future traffic conditions was deemed to be appropriate. Year 2006 PM peak hour turningmovements at the two analysis ysts mtersechons are presented in Figure 4. 2. Project Tri Generation P Trip generation for the proposed project was calculated using rates obtained from the Seventh Edition of the ITE Trip Generation Report, 2003. For the proposed office project trip generation rates associated with Land Use Code 710 (Office) were used. The results of the trip generation analysis are presented in Table 4. Table 4 Project Vehicular Trip Generation ITE Land Use AM Peak PM Peak Code Size AWT Total In Out Total In Out 710 a 112,10 8 gsf Rate11.01 1.55 0.85 0.12 1.49 0.17 0.83 Vol 1,155 163 143 20 156 27 129 a LUC 710-Office William Popp Associates Page 6 0 SE 68th St O 00 M �2 ! W (— 132 U' y Ne20 � 48th St CY) N SE 76th St JNNdn 51M ! 120 2) SITE 84 166 � f IV N 45 � rnN � / .. SE 80th St w z - m w < z c Q U C y J m C O oc r ay va SE 88th St xx-2006 PM PK HOUR WILLIAM POPP 14400 SBeOI-RedRd #206 BACKGROUND TRAFFIC VOLUMES Kennydale Business Park Bellevue,WA 98007 425.401.1030 wepa@seanet.com Figure 4 Traffic Impact Analysis(6/11/04) Kenn dale Business Park As shown in Table 4,the proposed project is estimated to generate 1,155 average weekday daily trips, 163 AM, and 156 PM peak hour trips. 3. Trip Distribution and Traffic Assignment Trip distribution percentages were applied to the project-generated PM peak hour trips. In general,the distribution percentages to/from the site were based on existing traffic volumes on the surrounding roadway infrastructure, existing vehicle patterns at the nearby office building to the north, as well as from general knowledge of residential and populated development in the surrounding area. The distribution patterns are shown in Table 5. Table 5 PM Peak Hour Distribution Percentages Origin/Destination Office I-405 to/from the north 35% I-405 to/from the south 35% Lk Wa Blvd to/from the north 5% Lk Wa Blvd to/from the south 5% SE 68th St to/from the east 10% SE 88th St to/from the east 10% Total 100% As presented in Table 5, the majority of the office generated traffic (70%) is oriented to and from I-405. North and south office traffic on Lake Washington Boulevard is estimated to be 5% each way. Twenty percent of the office traffic is estimated to be oriented to the east, evenly distributed between SE 68th St and SE 88th St. It is estimated that the distribution of project trips across the two driveways will be evenly split. The PM peak hour trip distribution and assignment for the project is presented in Figure 5. 4. Project Traffic J Background Traffic Plus Projffic Volumes g Year 2006 PM peak hour with-project traffic volumes were developed by adding project trips to the year 2004 background traffic volumes. Table 6 shows the impact of project traffic at the two study area intersections. William Popp Associates Page 7 i _ 1 Ln N_ v 35% ,D SE 68th St 3 13 , w 9 45 '6 d 1 ¢' L O 10% C� h Sim 3 13 v La ke 102 6 SE 76th St j 20 j 26 --�19 i% Wa-chington Ny9 N SE 80th St w z 9 a 0 s 13 3 w 6 z 1 a o 10% 9 45 Lft St 13 m \ 3 o� 5% q 3� �-b 0 V N 30th St LEGEND xx-Office PM Peak Hour Trips xx% -Office PM Peak Hour Distribution Percentage a 35% WILLIAM POPP ASSOCIATES 14400 Bel•RedRd #206 TRIP DISTRIBUTION & ASSIGNMENT Kennydale Business Park Bellevue,WA 98007 425.401.1030 wepa@seanet.com Figure 5 1 Trak Impact Analysis(6/11/04) Kennydale Business Park 1 Table 6 2006 PM Peak Hour Traffic Volumes" without° Project with Project Intersection Project only Project Impact(%) Lake Washington Blvd NE/ 632 122 754 16.2% NE 48th St(aka SE 76th St) Lake Washington Blvd NE/ 1,153 115 1,268 9.1% NE 44th St/I405 NB Ramps a Total PM peak hour vehicles entering intersection. As shown in Table 6, the impact of project traffic at the Lake Washington Boulevard NE/NE 48th St intersection is 122 vehicles during the PM peak hour, which equates to a 16.2% of the total entering traffic. The impact of project traffic at the Lake Washington Boulevard NElNE 44th St intersection is 115 vehicles during the PM peak hour, which equates to a 9.1%of the total entering traffic. Year 2006 PM peak hour with project volumes are shown in Figure 6. 5. Level-of-Service Level-of-service for the 2006 with- and without-project conditions was calculated for the 2 intersections. For the site access driveways, it is conservatively assumed for analysis purposes that all of the project trips utilize a single driveway. The results of the analysis are presented in Table 7. For comparison purposes, level-of-service values for 2004 is also presented. All of the future level of service calculations assume existing geometric and intersection control conditions. William Popp Associates Page 8 i0 N —LoW SE 68th St O ,a 1 = M 00 I 8 J l— t—228 _ W 1 to > pC Q 't 00 t 3m" 20 C> N/ NSM 51 JI I_ - 120 N 48th St SE 76th St 1 �� 57 A 94 _ _ % :% 166—J 2 ) ' SITE 45 "•" .-. N 4 N OSE 80th St 102 w 66 > wa 168-- Z 20 -1 a' N J O N C �1 04 SE 88th St xx-2006 PM PK HOUR WILLIAM POPP ASSOCIATES BACKGROUND PLUS PROJECT 14400 Bel-Red Rd #206 Kennydale Business Park Bellevue,WA 98007 TRAFFIC VOLUMES 425.401'1030 wepa@seanet.com Figure 6 Traffic Impact Analysis(6/11/04) Kennydale Business Park 1 Table 7 Future Intersection Level-of-Service(PM Peak Hour)' 2004 2006 2006 Intersection Existing Background w/Project Comments Lake Washington Blvd NE/ A(7.8) A(7.9) A(7.9) southbound left turn-yield NE 48th St(aka SE 76th St) B(12.5) B(12.8) C(15.1) westbound left turn-stop A(9.4) A(9.4) A(9.5) westbound right turn-yield Lake Washington Blvd NE/ C(18.3) C(20.6) E(36.0) southbound approach-stop NE 44th St/1 405 NB Ramps C(21.4) D(25.2) D(30.6) northbound approach-stop A(7.7) A(7.7) A(7.7) eastbound left turn-yield A(7.7) A(7.8) A(7.7) westbound left turn-yield with All-Way Stop Control: B(13.1) southbound approach-stop B(14.8) northbound approach-stop B(12.7) eastbound left turn-stop B(12.0) westbound left tum-stop NE 48th St/Project Site Access b - - A(7.6) westbound left turn-yield B(11.0) northbound approach-stop a LOS and Delay;delay represented in seconds per vehicle. LOS at side-street stop controlled intersection applies only to the side-street approach. Intersection and control are based on existing configurations unless otherwise noted. b For conservative purposes,analysis assumes all project traffic utilize one driveway. New intersection,driveway is stop control. As shown in Table 7, the critical movement at the Lake Washington Boulevard NE/NE 48th Street intersection, the westbound left turn, is estimated to operate at LOS B without the project and LOS C with. The average delay for this movement increases only 2.3 seconds per vehicle(sec/veh) with project traffic; from 12.8 s/v to 15.1 sec/veh. At the Lake Washington Boulevard NE/NE 44th Street intersection, the critical approach is the northbound approach for the future-without-project condition, and is estimated to be LOS D. It also estimated to be LOS D with the project. The average delay for this approach increases from 25.2 sec/veh to 30.6 sec/veh with addition of project traffic at the intersection. For the future-with-project condition, the critical approach shifts from the northbound approach to the southbound approach, and is estimated to operate at LOS E with the project. The average delay for this approach(southbound) increases from 20.6 sec/veh to 36.0 sec/veh. Recognizing that the approach volumes are relatively light in each direction and are approximately equal (305 westbound, 228 eastbound, 342 northbound, and 393 southbound), this intersection is a good candidate for an all-way stop configuration. With this type of intersection control, each approach is estimated to operate at LOS B. The project access approach to NE 48th Street is estimated to operate LOS B. Even though there are two driveways, the analysis assumes a worst case scenario where all U1traffic utilizes one driveway. 4 William Popp Associates Page 9 Traffic Impact Analysis(6/11/04) Kennydale Business Park C. CONCLUSIONS 1. Project Vehicular Impact The project is estimated to generate 1,155 average weekday daily trips, 163 AM, and 156 PM peak hour vehicle trips. The project vehicular percentage impact at the study area intersections ranges between 9.1% and 16.2%. The project's vehicular impact at the Lake Washington.Boulevard NE/NE 48th Street intersection is 122 vehicles during the PM peak hour. The project's vehicular impact at the Lake Washington Boulevard NE/NE 44th Street intersection is 115 vehicles during the PM peak hour. 2. Accidents Based on accident records, the Lake Washington Boulevard/NE 44`x' St/I-405 NB ramps intersection is currently experiencing a high level of accidents relative to the number of vehicles entering the intersection. The predominant accident occurrences are right angle type accidents from vehicles attempting to cross NE 44'x' St from the I-405 northbound off-ramp to Lake Washington Boulevard. With re-design of the intersection to an all-way stop configuration, the accident occurrences are estimated to significantly improve, especially the right angle accidents. It is important to note that the all-way stop intersection has been documented to be the safest type of intersection control. 3. Level of Service The results of the level of service analysis indicate the following: • The critical approach movement at the Lake Washington Boulevard NE/NE 48`x' St intersection,the westbound left turn, is estimated to operate at LOS C in the future with the project during the average weekday PM peak hour condition. • The critical approach at the Lake Washington Boulevard NE/NE 44"' St intersection, the southbound approach, is estimated to operate at LOS E in the future with the project during the PM peak hour. With re-design of the intersection to an all-way stop control configuration, with no lane modifications, this intersection is estimated to operate at LOS B overall, with all four approaches operating at LOS B as well. • The proposed project driveway approach is estimated to operate at LOS B. As noted earlier, there are two driveways proposed, however the analysis assumes a worst case scenario where all the traffic enters and exits from one driveway. William Popp Associates Page 10 Traffic Impact Analysis(6/11/04) Kennydale Business Park D. MITIGATION and RECOMMENDATIONS Based on the foregoing, it is concluded that there is an existing accident situation at the Lake Washington Boulevard NE/NE 44`x' Street intersection, and the weekday PM peak hour level of service at this intersection for the critical approach(the southbound approach) is estimated to be LOS E with the project. Presently, there is a large shoulder on the southbound approach, and with minimal fog line restriping, a flared approach could be created that is estimated to improve the LOS E condition. However, this design recommendation will do little to alleviate the accident condition. The City has indicated that this intersection will likely be considered for signalization in the near future based on the existing accident history. Nevertheless, at this time,there are no concrete plans. Alternatively, due to the relatively light approach volumes (approximately 300 to 400 vph) and nearly equal volumes for each approach, we conducted a level-of-service analysis for an all-way stop control at this intersection and concluded that it would operate satisfactorily and improve the accident instances and level of service. All approaches are estimated to operate at LOS B and the same true for the intersection overall for the future 2006 average weekday PM peak scenario with project traffic. The all-way stop intersection control is also anticipated to improve the high number of accidents, especially the existing high right-angle type accident occurrences. The Kennydale Business Park project's impact at this intersection is 9% of the total entering traffic, thus this project could potentially participate on a fair-share basis in this intersection operations and safety improvement. The City of Renton has adopted a transportation mitigation fee of$75 per net new average daily trip (ADT). Using the ITE based trip generation estimate of 1,155 ADT, the required mitigation fee would be $86,625. It should be noted that the project ADT estimate does not consider any potential project Transportation Demand Management (TDM)program which could possibly reduce the base ADT estimate, which in turn would result in an reduced mitigation fee requirement. With respect to frontage improvements, the project will locally benefit the transportation system by virtue of perimeter street lighting, curb, gutter and sidewalk construction that will be required. William Popp Associates Page 11 William Popp Associates Transportation Engineers/Planners (425)401-1030 e FAX(425)401-2125 e-mail: wepa@seanet.com TECHNICAL APPENDIX for Kennydale Business Park LAND USE AND TRAFFIC GROWTH IN THE PROJECT AREA ACCIDENT DATA PEAK HOUR TURNING VOLUMES INCLUDING DRIVEWAYS LEVEL OF SERVICE ANALYSES June 11, 2004 14-400 Building.Suite 206. 14400 Bel-Red Road .Bellevue, WA 98007 G 76 021 O � 0 5 02 027 8 8� � 2 O 0 4 27 02 7O2 0 o O 02 03 0 03 t 1 SE 6801 `NM#AM St-� 030 0 235 O 06 030 i FAZ 4 26 \ / � PERIM ER mom IN a MIX iMUMN an nn �& Mz --M LAND USE AND TRIP END GROWTH IN TAZ'S 296,297 AND 306 YEAR TAZ MF SF RET FIRES GOV EDU WTCU MANU TOTAL persons persons emp emp emp emp emp emp 0.42 0.28 2 0.4 0.7 0.555 0.72 0.41 LAND USE 2000 296 1313 2208 196 536 0 0 32 6 297 924 5447 214 119 0 0 68 75 306 174 4650 215 274 44 52 92 0 2010 296 1616 2287 259 654 0 0 39 7 297 1137 5926 283 144 0 0 83 91 306 219 5130 284 335 69 81 113 0 2020 296 1545 3150 311 673 0 0 45 9 297 1096 7402 339 148 0 0 97 118 306 206 6229 341 344 100 118 132 0 TRIP ENDS(PM PK,vehicles) 2000 296 551 618 392 214 0 0 23 2 1,800 297 388 1525 428 48 0 0 49 31 2,469 306 73 1302 430 110 31 29 66 0 2,041 2010 296 679 640 518 262 0 0 28 3 2,130 1.7% annual growth based on 10 yrs 297 478 1659 566 58 0 0 60 37 2,858 1.5% annual growth based on 10 yrs 306 92 1436 568 134 48 45 81 0 2,404 1.7% annual growth based on 10 yrs 2020 296 649 882 622 269 0 0 32 4 2,458 1.6% annual growth based on 20 yrs 297 460 2073 678 59 0 0 70 48 3,388 1.6% annual growth based on 20 yrs 306 87 1744 682 138 70 65 95 0 2,881 1.7% annual growth based on 20 yrs KENYDALEALS,trip end est 10/29/01 William Popp Associates �i A i m i i i & _ - i ADT on Lk Wa Bid s/o N 44th St(94,96,99,&01) 6000 ♦5728 5500 5000 - 4872 0004 72 ♦4731 4500 y= .5796x-15978 4000 ♦3588 3500 3000 Jun-94 Oct-95 Mar-97 Jul-98 Dec-99 Apr-01 ADT on Lk Wa Blvd s/o N 44th St Linear(ADT on Lk Wa Blvd s/o N 44th St) Lk Wa Blvd C1 INTERSECTION ACCIDENT DATA SUMMARY 0 N (O ch O M N V' ' RE Stop O 1 RA FO 1 2/3/03,1/22/01 J RA -+ �— 8/20/02 2/8/01,6/14/03 L LT SS W . *' Z 3/12/02 LT W > o 14, fII n 8/11/03,9/10/03,9/14/03 W W Y 8/8/03 RA 12/5/02,11/4/02,10/23/02.6/29/02,2/8/01,3/l/01 J 7/22/01 —� RAf O Stop RA-Right Angle LT-Left Turn(or approach turn) FO-Fixed Object SS-Side Swipe RE-Rear End Report Period: 1/1/01 to 12/31/03 1-405 NB on-off ramp Location Report 5/27/04 Report Period: 01/01/2001 to 12/31/2003 Location: FORTY FOURTH ST. NE at I-405/44TH N/B RAMPS Y Comment: Requested by Bill Popp,Jr. ... n�< Ani Ypar -)nn-i .- llVVl ` r.^ll" T'....�F lvoov D--c 1�TttYm Nnm Nit P, TAt 11 I T1�te1V11 !v'nllycinn N, },rr Type ofc%011;6nn Vr}, 1 Veh 2 Fat Tni PT)O Rim Veh I i h„_�/RN11 F- 1 0-Qn PM 01-Q1 15 Side.- Wine f F.>'q F.->W 0 P 2 1 Fri-2/23/01 06:12 AM 01-0158 Rieht Anele k+r S->N E->W 0 1 2 1 Thu-3/1/01 01:20 PM 01-0179 Right Angle awl j S->N E->W 0 P 2 Number of Collisions: 3 Totals: 0 1 2 0 6 Year 2002 Collision Time Of Case Direction Num Num Hit& Tot Date Collision Number Type of Collision Veh 1 Veh 2 Fat Inj PDO Run Veh Sat-6/29/02 02:59 PM 02-514 Right Angle I S->N E->W 0 2 2 1 Thu-7/18/02 06:26 PM 02-564 Approach Tum Lir N->E S->N 0 P 2 Thu 12/5/02 07.43 AM 02-1012 Right Angle P*Z-- S•>N E->W 0 P 2 Number of Collisions: 3 Totals: 0 2 2 0 6 Year 2003 I Collision 'fume Ut case Direction Num Num nit& lot 1 nate Collision Number Type of Couision 1 Veh i Ven 2 rat inj PDO Run Ven I Wed-423iO3 04:23 PM 011 3250 Rear End iv-'J 0 t- _2 Number of Collisions: 1 Totals: 0 0 1 0 2 Grand Totals: 11J1VL� ----= 1�YIIIUCI Ill VV . 7 AT..�1+�..,.07..1.7.1•...T......1.....J. Y A Alurnbe Vi ♦VLlLl1:J 111,V11•.LL. 1T Number of F-.taLities. n rn nnoi� Nlumber nFTni,Iriv_c• 7/3 Number of PT1QcS (71.410M Collision Rate: 0.00 Pagel va�J va iwuwu Location Report '5/27/04 Report Period: 01/01/2001 to 12/31/2003 Location: FORTY FOURTH ST. NE at LAKE WASH BLVD NNE Comment: RPnilPcted by Rill Pnnn; Tr , Fw,: 425.101-2175 Year 2001 C'nllicinn Timn(17 (\acn llirnrtinn NnmNnm Nit Q' Tnt I nate rnllki-nn Number Tvneoffnllicinn VPh 1 Veh 7. Fat Tni PDO Rnn Vnh I Mon-1/22/01 08:OOAM 01-0065 RiehtAnele N->S E->W 0 1+ 2 I Sun-7/22/01 10:28 PM 01-642 Right Angle S->N W->E 0 P 21 Number of Collisions: 2 Totals: 0 1 1 0 4 Year 2002 Collision Time Of Caro I Direction Num Num Hit& Tot Date Collision Number Type of Collision Veh 1 Veh 2 Fat Inj PDO Run Veh Tue-3/12/02 09:00 AM 02-202C Approach Turn -T F- E->W W->N 0 P 21 I Tue-8/20/02 06:58 PM 02-682 Right Angle N, ->W E->W 0 1 21 Wed-10/23/02 07:39 AM 02-856 Right Angle Vi-0f-c - S->N E->W 0 2 21 Mon-11/4/U2 07:31 AM 02-904 Right Angle -L%J.c-- 5->N E->W 0 Y 2 Number of Coiiisions: q Totais: u 3 i 0 8 Year 2003 I Colasion Time Of Case Direction Num Num nit&z Tot I Daie C.o'uision Number Type of Coiiision Ven i Veh 2 Fai ini PDO Run Veh I lvi.uu-2/3103 06:09 Plv1 03-0098 1�1b'111 A11gIC 1V-�J E-I VY ll 1' `I C, tA.nt A%r A'f A•TO C.]._____- JQl-V/tY1 VJ 1 V.V 1 1"1LVl VJ-T/U JlUOJ Wli./G tr T! \Tl T>n L"�TT L'-iJ V 1 z TL L/1n/n7 n7.'C AlA v7 AAA T): L A 1 ^ u *T IL11Y-W //VJ V I. JJt1611tt11151V lE-'- ->'k L-- i'711 V 1 G I Wed-6125/03 12:00 PM 03-5116C Re--End hT.>S NT->c 0 1 2 Fri_R/R/43 71 09 AM 03-656 RioAnoln —4 N_>.0 W_>F n P �I Mnn-R/11/�3 71b5? AM 03-661 RiclhtAnale ��— C_>N F->W Q P n I Sat-9/6/03 07:08 PM 03-737 Other N->W 0 1 1 Wed-9/10/03 05:12 PM 03-755 Right Angle S->N E->W 0 P 21 Sun-9/14/03 11:10 AM 03-766 Right Angle S->N E->W 0 P 21 Number of Collisions: 9 Totals: 0 4 5 0 17 Grand Totals: Number of Collsions: 15 Number of Vehicles Involved: 29 2 Number of Fatalities: 0 (0.00%) Number of Injuries: 7/8 (46.67%) Number of rDOs: 8 (53.33 o) Coiiision trate: 0.06 rz f� 3 Pagel %-Ity U1 nClitun i3Ocaiiuu Repufi 5/27/04 Report Period: 01/01/2001 to 12/31/2003 Location: FORTY EIGHTH ST. NE at LK WASH BLVD NE Comment: Requested by Bill Popp, Jr. Fay• d95-dn1-1195 Year 2002 Collision Time Of (:ase, Mrrrtinn Nnm Nitm Nit Rr Tot Date Collision Number Type of Collision Veh 1 Veh 2 Fat Tni PT)I Rin VPh I Thu-1/24/02 07:46 AM 02-079 Riaht Anele E->S S->N 0 P 2 Number of Collisions: 1 Totals: 0 0 1 0 2 Grand Totals: Number of Collsions: 1 Number of Vehicles Involved: 2 Number of Fatalities: 0 (0.00%) Number of injuries: 0/0 (0.00%) Number of YllUs: 1 (IUU.00% Collision Rate: 0.00 Pagel SEELIG PROPERTIES , KENNYDALE BUSINESS PARK PM PEAK HOUR TURNING MOVEMENTS 1 Lk Washington Blvd/W8th St 2004 PM PK 13-May-04 2006 2006 Kennydale Business 2006 179 143 2004 Future Background Park with Project PM PK Growth PM PK 104,871 gsf Office PM PK 0 129 EBLT 0 0 0 0 0 0 161 EBT 0 0 0 0 0 EBRT 0 0 0 0 0 303 299 2006 Background PM PK WBLT 127 5 132 96 228 186149 WBT 0 0 0 0 0 WBRT 2 0 2 6 8 0 134 0 168 NBLT 0 0 0 0 0 i NBT 141 6 147 0 147 315 311 NBRT 158 6 164 19 183 2006 with Project PM PK I 187 155 SBLT 3 0 3 1 4 SBT 176 7 183 0 183 0 236 SBRT 0 0 0 0 0 0 188 607 25 632 122 754 16% 411 330 2 Lk Washington Blvd/WE44th St 2004 PM PK 13-May-04 2006 2006 Kennydale Business 2006 285 325 2004 Future Background Park with Project PM PK Growth PM PK 104,871 gsf Office PM PK 354 219 EBLT 81 3 84 10 94 284 311 EBT 160 6 166 0 166 EBRT 43 2 45 0 45 118,320 2006 Background PM PK WBLT 55 2 57 0 57 297 338 WBT 115 5 120 0 120 WBRT 49 2 51 0 51 368 228 295 324 NBLT 9 0 9 0 9 -- NBT 195 8 203 9 212 123 333 NBRT 116 5 121 0 121 2006 with Project PM PK 393 357 SBLT 35 1 36 0 36 SBT 20 1 21 45 66 419 228 SBRT 230 9 239 51 290 305 324 1108 45 1153 115 1268 9% 168 342 KENYDALE.XL1,PM Turns 5127/04 William Popp Associates SEELIG PROPERTIES KENNYDALE BUSINESS PARK ` PM PEAK HOUR TURNING MOVEMENTS 3 N 48th St/Site Access 2004 PM PK 2006 2006 Kennydale Business 2006 0 0 2004 Future Background Park with Project PM PK Growth PM PK 104,871 gsf Office PM PK 129 129 EBLT 0 0 0 0 0 161 161 EBT 161 7 168 0 168 EBRT 0 0 0 20 20 1010 2006 Background PM PK WBLT 0 0 0 6 6 0 0 WBT 129 5 134 0 134 WBRT 0 0 0 0 0 134 134 168 168 NBLT 0 0 0 102 102 NBT 0 0 0 0 0 010 NBRT 0 0 0 26 26 2006 with Project PM PK 00 SBLT 0 0 0 0 0 SBT 0 0 0 0 0 236 140 SBRT 0 0 0 0 0 188 194 290 12 302 154 456 34% 26 128 KENYDALE.XL1,PM Turns sn7/04 William Popp Associates � r TWO-WAY STOP CONTROL SUMMARY ' f General Information Site Information nalyst Bpi Intersection Lk Wa Blvd/N 48th St gency/Co. William Popp Associates Jurisdiction City of Renton Date Performed 5124/04 Analysis Year 2004 extg nal sis Time Period PM PK Project Description Kenn dale Business Park East/West Street: N 48th St North/South Street: Lk Wa Blvd Intersection Orientation: North-South Stud Period hrs : 1.00 ehicle Volumes and Adjustments Major Street Northbound Southbound Movement 1 2 3 4 5 6 L T R L T R olume 0 141 158 3 176 0 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 0 141 158 3 176 0 Percent Heavy Vehicles 0 0 — — Median Type Undivided RT Channelized 0 0 Lanes 0 1 0 1 1 0 Configuration TR L T Upstream Signal 0 0 Minor Street Westbound Eastbound Movement 7 8 9 10 11 12 L T R L T R olume 127 0 2 0 0 0 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 127 0 2 0 J 0 0 Percent Heavy Vehicles 0 0 0 0 0 0 Percent Grade(%) 0 0 Flared Approach N N Storage 0 0 RT Channelized 0 0 Lanes 1 0 1 0 0 0 Configuration L R Delay,Queue Length.and Level of Service Approach NB SB Westbound Eastbound Movement 1 4 7 8 9 10 11 12 Lane Configuration L L R (vph) 3 127 2 C (m) (vph) 1274 607 825 lc 0.00 0.21 0.00 95%queue length 0.01 0.79 0.01 Control Delay 7.8 12.5 9.4 LOS A B A .Approach Delay — — 12.4 pproach LOS -- — B HCti2000TM Copyright 0 2000 University of Florida,All Rights Reserved Version 4.1c TWO-WAY STOP CONTROL SUMMARY General Information Site Information nalyst Bpi Intersection Lk Wa Blvd/N 48th St gency/Co. WN=Popp Associates Jurisdiction City of Renton Date Performed 5/24/04 Analysis Year 2006 without project nal sis Time Period PM PK Pro'ect Description Kenn dale Business Park East/West Street: N 48th St North/South Street: Lk Wa Blvd Intersection Orientation: North-South IStudy Period hrs : 1.00 Vehicle Volumes and Adjustments Major Street Northbound Southbound Movement 1 2 3 4 5 6 L T R L T R olume 0 147 164 3 183 0 01 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 0 147 164 3 183 1 0 Percent Heavy Vehicles 0 — _ 0 Median Type Undivided RT Channelized 0 0 Lanes 0 1 0 1 1 0 Configuration TR L T U stream Signal 0 0 Minor Street Westbound Eastbound Movement 7 8 9 10 11 12 L T R L T R olume 132 0 2 0 0 0 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 132 0 2 0 0 0 Percent Heavy Vehicles 0 0 0 0 0 0 Percent Grade(%) 0 0 Flared Approach N N Storage 0 0 RT Channelized 0 0 Lanes 1 0 1 0 0 0 Configuration L R Delay,Queue Length,and Level of Service pproach NB SB Westbound Eastbound Movement 1 4 7 8 9 10 11 12 Lane Configuration L L R (vph) 3 132 2 195% (m) (vph) 1261 594 815 lc 0.00 0.22 0.00 queue length 0.01 0.85 0.01 Control Delay 7.9 12.8 9.4 LOS -- A 8 A ,Approach Delay 12.7 pproach LOS — — g HCS2000TMt Copyright 02000 University of Clo.ida,All RigLts Reserved Version 4.1c TWO-WAY STOP CONTROL SUMMARY ' General Information nalyst Site Information BPJ Intersection Lk Wa Blvd/N 48th St gency/Co. William Popp Associates Jurisdiction City of Renton Date Performed 5/24/04 Analysis Year 2006 with project VEEa lysis Time Period PM PK ect Description Kenn dale Business Park t/Vl/est Street: N 48th St North/South Street: Lk Wa Blvd rsection Orientation: North-South Stud Period hrs : 1.00 icle Volumes and Adjustments Major Street Northbound Southbound Movement 1 2 3 4 5 g L T R L T R Volume 0 147 183 4 183 0 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 0 147 183 4 183 0 Percent Heavy Vehicles 0 _ Median Type Undivided RT Channelized 0 0 Lanes 0 1 0 1 1 0 onfiguration TR L T U stream Signal 0 0 Minor Street Westbound Eastbound Movement 7 8 9 10 11 12 L T R L T R olume 228 0 8 0 0 0 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 228 0 8 0 0 0 Percent Heavy Vehicles 0 0 0 0 0 0 Percent Grade(%) 0 0 Flared Approach N N Storage 0 0 RT Channelized 0 0 Lanes 1 0 1 0 0 0 Configuration L R Delay,Queue Length,and Level of Service pproach NB SB Westbound Eastbound Movement 1 4 7 8 9 10 11 12 Lane Configuration L L R (vph) 4 228 8 C(m)(vph) 1241 585 806 lc 0.00 0.39 0.01 5%queue length 0.01 1.90 0.03 Control Delay 7.9 15.1 9.5 LOS A C A pproach Delay -- -- 14.9 pproach LOS -- -- B HCS2000TMt Copyright 02000 University of Florida,All Rights Reserved Version 4.Ic IN TWO-WAY STOP CONTROL SUMMARY ' General Information Site Information nal st BPJBPJ Intersection Lk Wa Blvd/N 44th St enc /Co. William Po.pp Associates Jurisdiction Citty of Renton Date Performed 5/24/04 Analysis Year 2004 ext nal sis Time Period PM PK Project Description Kenn dale Business Park EasuvVest Street: N 44th St North/South Street: Lk Wa Blvd-1-405 NB Ramps Intersection Orientation: East-West Stud Period hrs : 1.00 ehicle Volumes and Adjustments Major Street Eastbound Westbound Movement 1 2 3 4 5 6 L T R L T R olume 81 160 43 55 115 49 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate,HFR 81 160 43 55 115 49 Percent Heavy Vehicles 1 _ _ 1 Median Type Undivided RT Channelized 0 0 Lanes 1 1 0 1 1 1 Configuration L TR L T R Upstream Signal 0 0 Minor Street Northbound Southbound Movement 7 8 9 10 11 12 L T R L T R olume 9 195 116 35 20 230 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 9 195 116 35 20 230 Percent Heavy Vehicles 2 1 1 1 1 1 Percent Grade(%) 0 0 Flared Approach y N Storage 2 0 RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR Delay Queue Length,and Level of Service Approach EB WB Northbound Southbound Movement 1 4 7 8 9 10 11 12 Lane Configuration L L LTR LTR (vph) 81 55 320 285 C(m)(vph) 1421 1375 563 554 /c 0.06 0.04 0.57 0.51 95%queue length 0.18 0.12 3.83 3.11 Control Delay 7.7 7.7 21.4 18.3 LOS A A C C pproach Delay -- -- 21.4 18.3 pproach LOS — -- C C HCS2000TMM Copyright 02000 University of Florida,All Rights Reserved Version 4.Ic l TWO-WAY STOP CONTROL SUMMARY ' [General Information Site Information ' nal st Bpi Intersection Lk Wa Blvd/N 44th St enc /Co. William Popp Associates Jurisdiction City of Renton Date Performed 5/24/04 Analysis Year 2006 without project nal sis Time Period PM PK Pro'ect Description Kenn dale Business Park EastAlNest Street: N 44th St North/South Street: Lk Wa Blvd-1-405 NB Ramps Intersection Orientation: East-West IStudy Period hrs : 1.00 ehicle Volumes and Adjustments Major Street Eastbound Westbound Movement 1 2 3 4 5 6 L T R L T R olume 84 166 45 57 120 51 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 84 166 45 57 120 51 Percent Heavy Vehicles 1 _ _ 1 edian Type . Undivided OR RT Channelized 0 0 Lanes 1 1 0 1 1 1 Configuration L TR L T R Upstream Signal 0 0 Minor Street Northbound Southbound Movement 7 8 9 10 11 12 L T R L T R olume 9 203 121 36 21 239 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 9 1 203 1 121 36 21 239 Percent Heavy Vehicles 2 1 1 1 1 1 1 1 Percent Grade(%) 0 0 Flared Approach y N Storage 2 0 RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR Delay,Queue Length,and Level of Service Approach EB WB Northbound Southbound Movement 1 4 7 8 9 10 11 12 Lane Configuration L L LTR LTR (vph) 84 57 333 296 C (m)(vph) 1412 1366 509 526 /c 0.06 0.04 0.65 0.56 95%queue length 0.19 0.13 5.35 3.74 Control Delay 7.7 7.8 25.2 20.6 LOS A A D C pproach Delay -- -- 25.2 20.6 pproach LOS -- — D C HCS20007M Copyright®2000 University of Florida,All Rights Reserved Version 4.Ic TWO-WAY STOP CONTROL SUMMARY General Information Site Information nal st BPJBPJ Intersection Lk Wa Blvd/N 44th St en /Co. William Popp Associates urisdiction City of Renton Date Performed 5/24/04 nal sis Year 2006 with project nal sis Time Period PM PK Project Description Kenn dale Business Park East/West Street: N 44th St North/South Street: Lk Wa Blvd-1-405 NB Ramps Intersection Orientation: East-West Stud Period hrs : 1.00 ehicle Volumes and Adjustments Major Street Eastbound Westbound Movement 1 2 3 4 5 6 �x- L T R L T R olume 94 166 45 57 120 51 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 94 166 45 57 120 51 Percent Heavy Vehicles 1 — — 1 Median Type Undivided RT Channelized 0 10 Lanes 1 1 0 1 1 1 Configuration L TR L T R Upstream Signal 0 0 Minor Street Northbound Southbound Movement 7 8 9 10 11 12 L T R L T R olume 9 212 121 36 66 290 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 9 212 121 36 66 290 Percent Heavy Vehicles 2 1 1 1 1 1 Percent Grade(%) • 0 0 Flared Approach y N Storage 2 0 RT Channelized 0 0 Lanes 0 1 0 0 1 0 Configuration LTR LTR Delay,Queue Length,and Level of Service pproach EB WB Northbound Southbound Movement 1 4 7 8 9 10 11 12 Lane Configuration L L LTR LTR (vph) 94 57 342 392 C(m) (vph) 1412 1366 479 503 /C 0.07 0.04 0.71 0.78 95%queue length 0.21 0.13 6 81 9.10 Control Delay 7.7 7.8 30.6 36.0 LOS A A D E Approach Delay -- — 30.6 36.0 pproach LOS -- — D E HCS2000'M Copyright®2000 University of Florida,All Rights Reserved version 4.1c ALL WAY STOP CONTROL ANALYSIS f General Information Site Information nal st IBPJ llntersection ILk Wa Blvd/NE 44th St en /CoMiod William Po Associates unsdiction Ciof Renton 6/3/04 nal sis Year 2006 with project PM PK Project ID Kenn dale Business Park EastMkst Street: NE 44th St North/South Street: Lk Wa Blvd olume Adjustments and Site Characteristics roach Eastbound Westbound ovement L T R L T R olume 81 160 43 55 115 49 /°Thrus Left Lane 50 50 roach Northbound Southbound ovement L T R L T R olume 9 195 116 35 20 230 /°Thrus Left Lane 50 1 1 50 Eastbound Westbound Northbound Southbound L1 L2 L1 L2 L1 L2 L1 L2 Configuration L TR L TR LTR LTR [Geometry F 1.00 1.00 1.00 1.00 1.00 1.00 w Rate 81 203 55 164 320 285 Heavy Vehicles 1 1 1 2 1 1 Lanes 2 2 1 1 Group 5 5 2 2 ation,T 1.00 turation Headwa Adjustment Worksheet p.Left-Tums 1.0 0.0 1.0 0.0 0.0 0.1 Prop.Right-Tums 0.0 0.2 0.0 0.3 0.4 0.8 Prop.Heavy Vehicle 0.0 0.0 0.0 0.0 0.0 0.0 hLT-adj 0.5 0.5 0.5 0.5 0.2 0.2 0.2 0.2 RT-adj -0.7 -0.7 -0.7 -0.7 -0.6 -0.6 1 -0.6 -0.6 HV-adj 1.7 1.7 1.7 1.7 1.7 1.7 1.7 1.7 hadj,computed 7.27 7.27 7.27 7.27 7.27 7.27 De acture Headway and Service Time d,initial value 3.20 3.20 3.20 3.20 3.20 3.20 initial 0.07 0.18 0.05 0.15 0.28 0.25 d,final value 7.27 7.27 7.27 7.27 7.27 7.27 final value 0.16 0.37 0.11 0.30 0.51 0.44 ove-up time,m 2.3 1 2.3 2.0 2.0 Service Time 5.0 4.3 5.0 4.3 5.0 4.3 5.0 4.3 Capacity21pacity and Level of Service Eastbound Westbound Northbound Southbound L1 L2 L1 L2 L1 L2 L1 L2 Capacity 331 453 305 414 570 535 Delay 11.38 13.20 11.04 12.31 14.80 13.08 LOS B B B B B B Approach:Delay 12.68 11.99 14.80 13.08 LOS B B B B Intersection Delay 13.26 Intersection LOS B HCS2000Tm Copyright 02000 University of Florida,All Rights Reserved Version 4.1c TWO-WAY STOP CONTROL SUMMARY 1 General Information Site Information nal st BPJ I Intersection N 48TH ST/SITE ACCESS n /Co. William Pop Associates Jurisdiction City of Renton Date Performed 5/24/04 Analysis Year 2006 with project lysis Time Period PM PK Project Description Kenn dale Business Park East/Vl/est Street: N 48th St North/South Street: Site Access Intersection Orientation: East-West ..LStudy Period hrs : 1.00 ehicle Volumes and Adjustments Major Street Eastbound Westbound Movement 1 1 2 3 4 5 6 L T R L T R olume 0 168 20 6 134 0 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 0 168 20 6 134 1 0 Percent Heavy Vehicles 0 F — — 0 Median Type Two Way Left Tum Lane RT Channelized 0 0 ' Lanes 0 1 0 0 1 0 Configuration TR LT U stream Signal 0 0 Minor Street Northbound Southbound Movement 7 8 9 10 11 12 L T R L T R olume 102 0 26 0 0 0 Peak-Hour Factor, PHF 1.00 1.00 1.00 1.00 1.00 1.00 Hourly Flow Rate, HFR 102 0 26- , 0 0 1 0 Percent Heavy Vehicles 0 0 Q 0 0 0 Percent Grade(%) 0 0 Flared Approach N N Storage 0 0 RT Channelized 0 0 Lanes 0 0 0 0 0 0 Configuration LR Delay,Queue Length.and Level of Service pproach EB WB Northbound Southbound Movement 1 4 7 8 9 10 11 12 Lane Configuration LT LR (vph) 6 128 C(m) (vph) 1398 732 lc 0.00 0.17 95%queup.length 0.01 0.63 Control Delay 7.6 11.0 LOS A 8 pproach Delay — -- 11.0 pproach LOS -- -- B HCS2000TMt Copyright 02000 University of Florida,All Rights Reserved Version 4.Ic